![]() Alpha mask requires a texture to be useful. You can use the slider to set an Alpha "threshold", and invert the texture if needed. It is usually defined using a grayscale (Luminance channel) or Alpha texture. Sometimes called an "image mask" or "coverage mask", an alpha mask works by setting visibility in a binary (on / off) way. In addition to a blended opacity channel, an Alpha Mask can be applied to a material. Choosing the appropriate mode will depend on your needs. Among the different blending methods, there are trade-offs between image quality and viewer performance. Transparency is often expensive in terms of processing power and rendering performance. Objects are drawn one by one on top of each other, and depending on the blending mode and the order they are rendered, the result differs. Rendering transparent objects is done by blending colors. Transparency or Opacity describes if something is visible (opaque), invisible (transparent), or partially visible ("partially transparent", "see-through", "translucent", etc.) How does transparency work? This article was adapted from a tutorial on our blog.
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